Spindle and spindle-support for spinning-machines



(No Model.) L. W. CAMPBELL.

SPINDLE AND SPINDLE SUPPORT FOR SPINNING MACHINES. .No. 598,669.

Patented Feb. a/

INVENTUR: *flii; #2}.

\X/ITNESSEE.

NlTED STATES PATENT OFFICE.

LEON WILLIAM CAMPBELL, OF WOONSOCKET, RI- IODE ISLAND, ASSIGNOR OFONE-HALF TO MALCOLM CAMPBELL, OF BOSTON, MASSACHUSETTS.

SPINDLE AND SPlNDLE-SUPPORT FOR SPINNING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 598,669, dated February8, 1898.. Application filed January 20, 1897. Serial No. 619,908. (Nomodel.)

.To all whom it may concern.-

Be it known that I, LEON WILLIAM CAMP- BELL, of Woonsocket, in thecounty of Providence and State of Rhode Island, have invented certainnew and useful Improvements in Spindles and Spindle-Supports forSpinning-Machines, of which the following is a specification.

This invention has relation to spindles and spindle-supports forspinning-machines, and has for its object such improvements in the sameas will overcome the friction heretofore encountered in running them andpermit their being rotated at a high rate of speed with a minimum ofpower, this object being attained by the novel devices and formationsillus trated upon the drawings and now to be described in detail, andthen pointed outin the claims hereto annexed.

Reference is to be had to the accompanying drawings and to the lettersand figures marked thereon, forming a part of this speci-- fication, thesame letters and figures designating the same parts or features, as thecase may be, wherever they occur.

Of the drawings, Figure 1 shows in vertical section a spindle and itssupport embodying my invention. Fig. 2 is a transverse section of thesame on the line 2 2 of Fig. 1. Fig. 3 shows a slightly-modified form ofmy invention. Fig. 4 illustrates a split ring which is employed formaintaining the antifrictionballs in their bearings.

It has been proposed heretofore to manufacture a spindle-support inwhich thespindle was held against lateral vibration by means ofantifriction-balls placed between the support and the spindle, and ithas likewise been proposed to support the spindle vertically by means ofantifriction devices;

but so far as I am aware such constructions is nodanger of the ballsbeing displaced or lost. Again, in my invention the balls are placed insuch relation to the sleeve-whirl that the thrust of the driving-band isborne directly by them.

Referring to the drawings, the spindle a has its upper portion taperingfrom the end to the point indicated at 2,where it is beveled inward, asat at, its lower portion being formed cylindrically, as at a a andreduced at the end a. Secured to the tapering portion of the spindle isthe sleeve-whirl b, which extends down over the tubular portion 0 of thebolster-case c and is held from slipping longitudinally by a detent cl,threaded into the flange o of the said case, and extends into .a groove5 in said sleeve-Whirl.

The bolster-case is'threaded at c to secure it to the rail (not shown)and is formed with a central aperture 0 to receive the spindle, the saidaperture being reduced at 0 so that the end a of the spindle will fittherein without being prevented from freely rotating. The lower portionof the aperture forms a well or pocket 0 to receive a suitablelubricant. The aperture is increased in diameter at the upper end of thetubular portion of the bolster-case, and on the inner walls thereof isformed a groove 0 to receive a ring of antifriction-balls e, the wall ofthe groove being extended upward, as at 0 to prevent the balls fromrolling into the aperture in the case. The bevel a of the spindle restsloosely upon the balls, which therefore not only support the spindle,but also form a lateral support for it.

A split ring f of wire is slipped into a groove in the upper reduced endof the tubular portion of the bolster-case and coacts with the wall 0 ofthe groove 0 in holding the balls against displacement, the distancefrom the said wall 0 to the periphery of the ring f being less than thediameter of each ball.

The balls 6 are arranged in that transverse plane of the whirl b whichpasses through the center of the groove which receives thedriving-handy, so that the entire thrust of the latter is borne evenlyby the said balls and is not above or below them.

Now from the foregoing it will be observed that the antifriction-ballsnot onlycarry the weight of the spindle, but support it laterally, andthat the spindle may be readily removed without danger of their beingdisplaced or becoming lost. If desired, the split ring may be quicklyand readily removed for the purpose of replacing or cleaning the ballsand then as easily putin place. Hence, although I refer in the claims tothe balls being permanently detained in place, it will be understoodthat they are only maintained in position when the spindle is removedand may be removed when desired.

The lower end of the spindle is held against lateral vibration in thereduced portion of the aperture, the cylindrical portion of the cylinderbetween the said end and the bevel a being considerably less in diameterthan the aperture.

Instead of forming the groove or track for the antifriction-balls in thetubular portion of the case I may employ a ring of relatively hard steelh, as shown in Fig. 3, and form the groove or track therein, the splitring fitting in a groove therein.

Having thus explained the nature of the invention and described a way ofconstructing and using the same, though without attempting to set forthall of the forms in which it may be made or all of the modes of its use,I declare that what I claim is 1. The combination with a bolster-casehaving a central aperture, and an internal groove, a ring ofantifriction-balls in said groove, and means for detaining the ballspermanently therein, of a spindle arranged in the central aperture ofthe bolster-case, and supported entirely by said antifriction-balls,said spindle being readily removable independently of the balls.

2. The combination with a freely-removable spindle having a bevel, of abolster-case formed with a reduced aperture to receive the lower end ofthe spindle, and having an internal groove, a series ofantifriction-balls in said groove and on which the said bevel rests andis-supported, means for detaining the said balls in place when thespindle is removed, and a sleeve-whirl attached to the spindle andarranged in such way that the driving-band is in the plane of the balls,whereby the thrust of the said band is borne by said balls.

3. The combination with a freely-remov- LEON VILLIAM CAMPBELL.

Witnesses:

M. CAMPBELL, EDGAR O. Bron.

